When a square wave is applied to primary of a transformer
then what will be output wave form of secondary ?
- 15 Answers
- 47623 Views
- Bhel, Sail, Sterling Telecom, TCS, I also Faced
- E-Mail Answers
Answer Posted / fabio corsi
A Fourier analysis may be applied only if a transformer is
linear, which is rarely the case; furthermore, even in a
linear transformer, the dispersed flux has to be accounted,
i.e. flux produced by the primary current which is not
chained with the secondary coil and viceversa.
In a linear transformer without dispersed flux and with zero
resistance of the coils, the waveform of the secondary
voltage is the same as that of the primary voltage, since
u1=N1*d(flux)/dt and u2=N2*d(flux/dt), the flux being the
same, i.e. u1/u2=N1/N2 no matter the waveform (provided it
can be integrated, which is also the case of a square wave).
This is no longer the case with dispersed flux, and/or with
coil resistance, and/or with non-linear core (e.g. iron), in
which case all depends on the involved parameters
(inductance of dispersed flux, hysteresis cycle of the core,
resistance of the coils and consequent time constants w.r.t
the working frequencies).
In a nutshell: "ideal" transformer(never the case actually)
==> square wave; non-ideal transformer ==> non-square
waveforms, the more distorted the less the transformer may
be approximated as ideal, possibly even spikes.
| Is This Answer Correct ? | 30 Yes | 4 No |
Post New Answer View All Answers
What is cable tray, its type, and its support?
What is the use of oil in transformers?
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
Write the programming software name for LG, SIEMENS,Messung,AB
what is meant by 2 within a star in a voltmeter dial?
how to test the turn ratio of 3 phase transformer using volt meter shoe the curcit diagram.
If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?
I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.
sir i have cleared the apti test of EIL held on 15th march and my interview will be in new delhi on 2nd june.i will be very much helpful if u help me regarding the type of interview questions comes at EIL.(URGENT.........PLZZZZZZZZZZ...............)
What is a compensator?
What is pole of the system?
I need bhel electrical test pattern & paper
Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.
how to calculate the surge level of surge suppressors related to the SF6 cicuit breakers?
What will be result if we connect LT votage to the terminal of HT motor?
